Concrete chimney-block.



BEST AVAILABLE COPY PATENTED JUNE 23, 1 908.

LW. WHITE. CONCRETE CHIMNEY BLOCK.

APPLICATION FILED AUG. 5, 1807.

element in position, to add si oeri oh JOHN W. WHITE, OF SlOKAiIZJ,"NASZEIYGTON,

CGN CHIMNE Y-B LQGK,

No. 891,312. I Application filed Angus} 5,

To all whom it may concern:

I A H u provide a chimney hlock'withe flue and ventilating; symees, andspecific means in the webs or hoiily )orsiori of the structure. iestrengthen he )loek, tholx a light and dumble comet-motion will heformed.

Other obj eats and advantages will be hereinafter referred to andparticularly pointed out in the claims.

In the drawings-Figure 1 is opersoeotive View showing the arrangement oft ie preferred form or block, iirthe formation of 21. ehimne Fig; 2 isahorirlont zii section taken through one of the blocks. 3 is atransverse semioiitzilsioii through one of the bloizhs. Fig. '4 is iidetail ierspeorive View of one of the strengthening eii'ieiits. asimilar VlGW of one of the reinforeii'ig ele moot-s. k

The numeral 1, indicates i1v ehimney' oiovl; of squsre. formation, andcomprising inner walls 3, forming ii flue, and outer walls 23, sl'izzuedfrom the inner walls, and entirely surrounding he some, and diogoimlwebs "1, ei'mneeting said inner and ouier ivz'ills or the corners.iifimheddod in the inner walls 23, are bracing elements 5, hayingexiensions (S. whieh extend into the Webs 4. The bracing elements arepreferably formed of 21- single pie-re oi'.\vire, forinml him @he shapeoi the wall arid plotted of twisted M1 the corners to provide thoexteiions 6. By ihus form- 'ingthe extensions smell iipenings are formedbetween the Wire. into whirh the eonorete enters to more. rigidly holdthe .i eiiifoieing igth to the hloelr. I have shown two reinforeing el'ments 5, embedded in firewall 3, and it evident oihers may he utilizedif found desirable. Embedded iii the otiut-rwvoll 2, are

Specification of Letters Peten'b reinforeii'ig elements S, formed ofWire. The

Yacenfied June 23 1908. 1907. Serial enes.

merits as are preferably formed of Wire, and eeehoi e consists of asingle piece lienl'. i ooonform to the shape. or outline of the block,and hawng the ends twistedes at 8.

(hie of the elemen'is 7 meyhe extended from the block to provide A looolebywhieh means the blocks eon be tied to or held in position to thesurrounding structure.

1 block. constructed' as herein (les'irihed has iis upper .zmd ioworfeces flush to be readily placed one on the other in the forma Lion of oo iimney, and by providing the vntiloiing spaces around the chimneyopening proper 22, danger of overheating is oversome, and if desiredsaid spaces may be iflfipefi for vei'ii'ihiting the room.

n concrete blocks iiis Weil known that the mass must he strengthened toproperly reinforce it, particularly where webs are em- 32h ployed tolirhten theslruotihe. Ihsve therefore provided the specific form ofreinforcing element whereby av strong and durable com Crete mmstructionprovided.

1. A concrete chimney block on; ii'u'ier rails forming o five and outerVi spaced .Erm'n and surrounding the inner Walls, wehs connecting theinner and outer Wells, a reinforcing elementv extending entirely aroundand embeddedwiihin the miter wells, said eieinent having oymnings atilelmrn iinoie points for the passage of the ooherete and r.reinioiroin' element provided with extensions having openings for thepassage of the mate i din! lormmg the Walls, the latter reinforcingelement being embedded in the inner walls, and the exiehsions embeddedin the webs.

2. A oonereir chimney block comprising inner wallslorming av flue, andouter walls spewed i'ro and surrounding the inner Walls, websenumeratingthe inner andonter walls, a reinforoing elemeiii formed of Wire halvingits ends twisted and embedded in the outer WsLllR, a reinforcing elementformed of Wire and having the ends secured together arid provided withtwisied extensions and embedded in the inner walls and the Webs.

3. A concrete block provided with inner walls forming a flue, and outerWalls spacedi'rom and surrounding the inner walls, and

Wehseonnecting the inner and ouier"wolls,-

i'einforcing elements embe ided in inxzier and In testimony whereof Iafiix my signature, outer walls, 01 16 of smd remjforcmg elements inpresence of two witnesses. having extenslons formed w1th ope'mn s andembe deed in the webs, and one of sai mine JOHN WHI 5 forcing eiementsextending beyond the end Witnesses:

of the chimney block to rowde means for E. A. WHITE,

attaching said block to a uilding. JOHN W. RUM AGE,

